A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 5975-01-399-1160
NSN 7035-01-512-1826
NSN 5855-01-100-3272
NSN 5998-01-634-0604
NSN 7035-01-317-7186
NSN 5999-01-067-9012
NSN 6220-01-112-0874
NSN 5835-01-106-1456
NSN 5960-01-247-4560
NSN 5905-00-907-3434
NSN 5920-01-651-5136
NSN 6645-01-215-0617